Nuance

What's New:

- Fix loading of nuance.cfg when drag and drop is used
- Hide mouse cursor when in fullscreen mode
- Make rendering window behave like the others when trying to close it (e.g. clicking 'X' and Alt-F4 work now)
- Fix user breakpoints
- Fix 16/16z pixel format bilinear DMA
- Enable kprintf outputs (also new documentation about it within this readme file)
- Fix regression in code interpreter (shift+XXX opcodes)
- Slightly optimize code interpreter (ALU add+/sub+XXX opcodes)